import axios from 'axios'
import {
	MessageBox,
	Message
} from 'element-ui'
import store from '@/store'
let service_url = null, //请求ip
	service //请求对象
if (process.env.NODE_ENV == 'development') {
	service_url = '/apis' //开发模式
} else {
	service_url = 'http://47.106.152.46:8088/jxc' //生成模式
}
// 创建实例
service = axios.create({
	baseURL: service_url, // url = base url + request url
	// withCredentials: true, // send cookies when cross-domain requests
	timeout: 60000, // request timeout
	headers: {
		'Content-Type': 'application/json;charset=UTF-8' //转换data展现形式
	},
})

//请求拦截器
service.interceptors.request.use(
	config => {
		// do something before request is sent
		if (store.getters.token) {
			// let each request carry token
			// ['X-Token'] is a custom headers key
			// please modify it according to the actual situation
			config.headers['X-Access-Token'] = localStorage.getItem('token')
		}
		return config
	},
	error => {
		// do something with request error
		console.log(error) // for debug
		return Promise.reject(error)
	}
)

//响应拦截器
service.interceptors.response.use(
	/**
	 * If you want to get http information such as headers or status
	 * Please return  response => response
	 */

	/**
	 * Determine the request status by custom code
	 * Here is just an example
	 * You can also judge the status by HTTP Status Code
	 */
	response => {
		const res = response.data

		// if the custom code is not 20000, it is judged as an error.
		if (res.code == 200||res.code == 0) {
			return res
			
		} else {
			Message({
				message: res.message || 'Error',
				type: 'error',
				duration: 5 * 1000
			})
			
			// 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
			if (res.code == 500 || res.code === 50012 || res.code === 50014) {
				// to re-login
				MessageBox.confirm('可以取消以停留在此页面，或重新登录',
					'提示', {
						confirmButtonText: '重新登录',
						cancelButtonText: '取消',
						type: 'warning'
					}).then(() => {
					store.dispatch('user/resetToken').then(() => {
						location.reload()
					})
				})
			}
			return Promise.reject(new Error(res.message || 'Error'))
		}
	},
	error => {
		console.log('err' + error) // for debug
		Message({
			message: error.message,
			type: 'error',
			duration: 5 * 1000
		})
		return Promise.reject(error)
	}
)



//请求接口
function doGet(url, req, successCallback, errorCallback) {
	return new Promise((result, rejec) => {
		service({
			url: url,
			method: 'get',
			params: req
		}).then((response) => {
			result(response)
			successCallback && successCallback(response);
		}).catch((err) => {
			rejec(err)
			errorCallback && errorCallback(err);
		})
	})
}

function doPost(url, req, successCallback, errorCallback) {
	return new Promise((result, rejec) => {
		service({
			url: url,
			method: 'post',
			data: req,
			// transformRequest: [function(data) {//允许在向服务器发送前，修改请求数据
			// 	let ret = ''
			// 	for (let it in data) {
			// 		ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
			// 	}
			// 	return ret
			// }],
		}).then((response) => {
			result(response)
			successCallback && successCallback(response);
		}).catch((err) => {
			rejec(err)
			errorCallback && errorCallback(err);
		})
	})
}

function doDelete(url, req, successCallback, errorCallback) {
	return new Promise((result, rejec) => {
		service({
			url: url,
			method: 'delete',
			params: req,
		}).then((response) => {
			result(response)
			successCallback && successCallback(response);
		}).catch((err) => {
			rejec(err)
			errorCallback && errorCallback(err);
		})
	})
}

function doPut(url, req, successCallback, errorCallback) {
	return new Promise((result, rejec) => {
		service({
			url: url,
			method: 'put',
			data: req
		}).then((response) => {
			result(response)
			successCallback && successCallback(response);
		}).catch((err) => {
			rejec(err)
			errorCallback && errorCallback(err);
		})
	})
}
//导出功能
function doExport(url, req, successCallback, errorCallback) {
	return new Promise((result, rejec) => {
		axios.get(service_url + url, {
			responseType: 'blob',
			headers: {
				'Content-Type': 'application/json;charset=UTF-8', //转换data展现形式
				'X-Access-Token': localStorage.getItem('token')
			},
		}).then(response => {
			result(response)
			successCallback && successCallback(response);
		}).catch((err) => {
			rejec(err)
			errorCallback && errorCallback(err);
		})
	})
}

export default {
	doGet: doGet,
	doPost: doPost,
	doDelete: doDelete,
	doPut,
	doExport
}
